As i replied to Tom, it should be how it says it is!
In the meantime, here is a workaround:
su node
mkdir "${HOME}/.npm-packages"
npm config set prefix "${HOME}/.npm-packages"
cat > "${HOME}/.bashrc.d/node" <<'EOF'
NPM_PACKAGES="${HOME}/.npm-packages"
export PATH="$PATH:$NPM_PACKAGES/bin"
# Preserve MANPATH if you already defined it somewhere in your config.
# Otherwise, fall back to `manpath` so we can inherit from `/etc/manpath`.
export MANPATH="${MANPATH-$(manpath)}:$NPM_PACKAGES/share/man"
EOF
chmod +x "${HOME}/.bashrc.d/node"
source "${HOME}/.bashrc.d/node"
As Tom points out on the forums, the NodeJS appliance isn't configured as the appliance page says it is. There is a link to the guide there too (and in Tom's post).
As i replied to Tom, it should be how it says it is!
In the meantime, here is a workaround: